55LW9800-UA (CHASSIS:LA12D) - LG TV Service Manual (repair manual). Page 19

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- Check that Power Cord is fully inserted to the SET. 

- Unit fully inserted Power cord; Antenna cable and A/V arrive

to the auto-check process.  

- Connect D-terminal to AV JACK TESTER 
- Auto CONTROLLER (GWS103-4) ON 
- Perform GND TEST 
- If NG, Buzzer will sound to inform the operator. 
- If OK, changeover to I/P check automatically. 

(Remove CORD, A/V form AV JACK BOX) 

- Perform I/P test 
- If NG, Buzzer will sound to inform the operator. 
- If OK, Good lamp will lit up and the stopper will allow the

pallet to move on to next process. 

•  TEST voltage 

- GND: 1.5KV/min at 100mA 
- SIGNAL: 3KV/min at 100mA 

•  TEST time: 1 second 
•  TEST POINT 

- GND TEST = POWER CORD GND & SIGNAL CABLE

METAL GND 

NEUTRAL 

•  LEAKAGE CURRENT: At 0.5mArms 

Step 1) Turn on the TV. 
Step 2) Press EYE button in adjust remote control. 
Step 3) Stay 6 seconds with Eye Q sensor hidden located on

the front of the set. 

Step 4) Check the “Sensor Data” on the screen and check

whether the value is lower thanafter 6 seconds, the
value does not go below 10, Eye Q sensor is not
working properly. Then, change the sensor. 

Step 5) Remove hand from the Eye Q II sensor and stay for 6

seconds. 

Step 6) Check whether the “Back Light (xxx)” value has risen

on the screen. If after 6 seconds and the value still
does not go high, the eye Q II sensor is not working
properly. Replace the sensor. 

- Required Instruments: Inspection RF-remote control,

Inspection IR-KEY-CODE remote control. 

- Prior to the test, AA battery for the RF-remote control should

be adequate. (Change the battery for each LOT is
recommended) 

- Test procedures 

a) Press  the  ‘START’ key on the controller to pair with the

set. 

b) Press the ‘OK’ key in the controller and check whether the

cursor appears on the set. 

c) Press ‘Vol+ (STOP)’ key to de-pair with the set.  

Measurement condition: 
1. RF input: Mono, 1 KHz sine wave signal, 100% Modulation 
2. CVBS, Component: 1 KHz sine wave signal 0.4Vrms 
3. RGB PC: 1 KHz sine wave signal 0.7Vrms 

 

<Step1>

<Step2>

<Step3>

<Step4>

<Step5>

No 

Item 

Min 

Typ 

Max 

Unit 

 

Remark 

9.0 10.0 12.0

W 

1. 

  Audio practical max 

Output, L/R 
(Distortion=10% 
max Output) 

8.5 8.9  9.8 Vrms 

Measurement 

condition 

EQ Off 

AVL Off 

Clear Voice 

Off 

47/55LW9500-NA 
47/55LW9600-NA 
60LW9600-NA 
47/55/60LW9500-UA
42/47/55LW7700-NA
47/55LW7700-UA 
42/47/55LW7500-NB

2.  

Speaker 

(8Ω 

Impedance) 

 10.0  15.0

W  Measurement 

condition 

EQ On 

AVL On 

Clear Voice On 

47/55LW9500-NA 
47/55Lw9600-NA 
60LW9600-NA 
47/55/60LW9500-UA
42/47/55LW7700-NA
47/55LW7700-UA 
42/47/55LW7500-NB